Chapter 6: The Book of the Demon King

"Wait!" Ulysses interrupted Aiya. For some reason, he always felt that there was something off about Aiya's words. What was it that felt wrong? Ulysses began to carefully recall every word Aiya had said. Aiya looked at him with curiosity and did not seem displeased by Ulysses interrupting her.

What? The Book of the Demon King! Ulysses never expected that the answer he received would be such a thing. His earlier ominous premonition had indeed come true, but this answer was a hundred times worse than any of the worst outcomes he could have imagined

"No! Neither I nor this Demon Lord's book belong to this world! Ah! How incredible it is that we, from different worlds, can meet and form a contract! Could this be what is called fate? It seems that my master and I are destined to be united." Stars began to twinkle in Aiya's eyes

This is a dream, this is a dream, it will disappear as soon as I wake up. Ulysses continuously hypnotized himself, and when he recited it one hundred and fifty times, the sleep demon finally visited him, allowing him to enter the realm of dreams

Indeed, the Book of the Demon King or the Book of Curses are the true names of this tome. By possessing it, you will inherit the power of Lord Astaroth, becoming a new Demon King. As the guardian demon of the Book of the Demon King, I will forever accompany you, guiding you in your cultivation and the use of the knowledge and power recorded by Lord Astaroth in the Book of the Demon King. Aya gazed at Ulysses with immense excitement, her eyes resembling that of a wolf looking at Little Red Riding Hood, sending shivers down Ulysses' spine. As the guardian demon of the Book of the Demon King, I will forever accompany you, guiding you in your cultivation and the use of the knowledge and power recorded by Lord Astaroth in the Book of the Demon King. Aya gazed at Ulysses with immense excitement, her eyes resembling that of a wolf looking at Little Red Riding Hood, sending shivers down Ulysses' spine

"I am not joking! You have not heard of the demon lords named Astaroth or Lucifer because both Lord Astaroth and Lord Lucifer are not the demon lords of this world. The power you have inherited, Master, is not that of the demon lord of this world, so your question is completely meaningless." Aya's response left Ulysses momentarily petrified

The first Demon King appeared in ancient times, known as Delka, the ruler of the strongest race among the demons, the vampires. In a bid to seize dominance over the continent from humanity, he led the vampire clan to unite with certain dark races and launched a full-scale war against humans, historically referred to as the "War of Humans and Demons." In the early stages of the war, the vampire clan, relying on their immortal bodies and their unique ability to turn other races into zombies through bloodsucking, defeated the human armies, occupying more than half of the continent's land. However, humanity soon discovered the vampires' fatal weaknesses— their powers would be halved under sunlight, and they could be killed by having their hearts pierced by silver weapons. Consequently, the tide of battle began to turn, as a large number of human soldiers equipped with silver weapons launched a counteroffensive, defeating the vampire clan and their allies within three months, leading to the extinction of the vampire clan, the main force of the enemy. Delka himself perished at the hands of the holy swordsman Bella, who wielded the divine artifact "Holy Light Blade." It is said that Delka was bloodthirsty, and those who died at his hands were torn apart, earning him the title of "Bloodthirsty Demon King."

However, it does not matter. Since the Book of the Demon King has chosen you, it indicates that you possess the qualifications to become the Demon King. As long as you have talent, race, and profession, anything is possible. Moreover, I have heard that there was once a Demon King named Lucifer, who, before becoming the Demon King, was a light deity whose power was second only to that of the God of Light! If even a light deity can become a Demon King, then it is even less of a problem for you, my master

"Not of this world? Not of this world?" Ulysses repeatedly echoed Aia's words

The second Demon King appeared five thousand years ago, named Kasa, whose true form was an eight-headed demon dragon. This dragon, mutated from a dark dragon, possessed an unparalleled strength that surpassed any dragon lineage, with scales harder than those of ordinary dragons by more than ten times. No weapon or magic in the world could inflict even the slightest harm upon it. Relying on its indestructible body, it plundered every city on the continent that had books. Under its tyrannical rule, there was hardly a single intact city left on the continent. At this time, an extraordinary powerhouse named Karl emerged, wielding the artifact "Destruction Sword" to surpass the hardness of Kasa's dragon scales and his own supreme martial arts mastery, ultimately slaying Kasa and saving the continent. Because Kasa never spared any shiny objects during his plundering of cities, he was referred to as the "Greedy Demon King"

Indeed! This must be a dream! Yes, that's right, it's a dream! I'm so disoriented! Ulysses had a look of sudden realization on his face as he burrowed back into the covers

"Wait! I am a Level 4 Light Mage. How could I possibly be recognized by that so-called Demon King's Book! Could there be some mistake?" Although Ulysses felt a chill from Aiya's gaze, he had to clarify the matter due to its significance. In Ulysses' heart, there remained a glimmer of hope; he wished that the Demon King's Book had made a mistake regarding him, because no matter how he thought about it, as a Light Mage, it was impossible for him to have any connection with a Demon King.

Indeed, a flash of insight struck Ulysses; he finally understood what was amiss. In this world, the power of the God of Light belongs solely to the Supreme Deity, and there is no other deity of light known as Lucifer. Following this line of thought, the doubts began to unravel one by one. Throughout history on the continent, only three terrifying demons have ever been referred to as "Demon Kings".

Ah! Master, you cannot do this! Avoidance will not solve any problems.

The last demon king appeared three hundred years ago, and no one knows his name; only his profession as a necromancer is known. Although no one has ever seen his true form, he is universally acknowledged as the strongest among the three demon kings. With his singular power, he instigated the necromantic war that swept across the entire continent. Under his seemingly limitless magical control, a death legion composed of tens of millions of undead launched a frenzied assault on all living beings on the continent. In the face of an overwhelming disadvantage, with troop comparisons reaching hundreds to one or even thousands to one, the armies of various races suffered defeat one after another, with many races being annihilated overnight. Ultimately, apart from the three major races of humans, orcs, and elves, as well as the dragon race far overseas, nearly all other races were slaughtered to near extinction. The population of the continent plummeted from over two hundred million at its peak to below three million, while the number of the death legion increased to over one hundred million through the continuous summoning of new dead. When everyone believed that the end of days was imminent, the death legion mysteriously vanished from the continent, and no one knows the reason. Where did the over one hundred million death legion and its controller go? This question became an eternal mystery. Although the death legion disappeared, the terror and despair it once brought to this continent are forever etched in the hearts of the people. The death king, whose true name remains unknown, has since been referred to as the "Terror Demon King." Where did the over one hundred million death legion and its controller go? This question became an eternal mystery. Although the death legion disappeared, the terror and despair it once brought to this continent are forever etched in the hearts of the people. The death king, whose true name remains unknown, has since been referred to as the "Terror Demon King."

The names and deeds of the three demon kings on the continent are so well-known that even a five-year-old can recite them. There is simply no demon king named Astaroth or Lucifer! Even if one were to exist, it would be that unknown terrifying demon king's name; how do you explain the other one? Aiya, are you just joking when you say I am the heir to the demon king?" Ulysses believed he had seen through Aiya's little prank, and his mood instantly improved. Aiya, are you just joking when you say I am the heir to the demon king?" Ulysses believed he had seen through Aiya's little prank, and his mood instantly improved.

"Ah, Master, you are actually a Light-type profession." Aiya was taken aback, which increased the glimmer of hope in Ulysses' heart. However, Aiya's next words immediately shattered that glimmer of hope into pieces

Master, you have surprisingly gained the recognition of the Book of the Demon King at such a young age; you will undoubtedly be the youngest Demon King in history. Aiya takes great pride in being your demon servant. Originally, Aiya thought that only those old men who have cultivated dark powers for hundreds of thousands of years would be recognized by the Book of the Demon King. Those old men have nothing in their heads but cultivation; they might not even speak a word in a hundred years, unlike you, Master, who can chat with Aiya. Ah! Aiya is truly so happy.